900620 has 36 divisors (see below), whose sum is σ = 2202480. Its totient is φ = 308448.

The previous prime is 900607. The next prime is 900623. The reversal of 900620 is 26009.

It is a super-2 number, since 2×900620² = 1622232768800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900623) by changing a digit.

900620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (61180).

2⁹⁰⁰⁶²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 900620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101240).

900620 is an abundant number, since it is smaller than the sum of its proper divisors (1301860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900620 is a wasteful number, since it uses less digits than its factorization.

900620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 900620 is about 949.0100104846. The cubic root of 900620 is about 96.5711038685.

Adding to 900620 its reverse (26009), we get a palindrome (926629).

The spelling of 900620 in words is "nine hundred thousand, six hundred twenty".